MANUFACTURER SINCE 1986

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In the realm of metalworking, expanded metal stands out as a versatile and widely used material, offering a myriad of applications across various industries. Understanding the dimensions of expanded metal is paramount for harnessing its full potential in diverse projects. In this comprehensive guide, we delve into the intricacies of expanded metal dimensions, covering standard sizes, thicknesses, strand widths, diamond openings, and their profound impact on versatility and applications.
 

Understanding Expanded Metal Dimensions

 
Expanded metal, also known as expanded sheet metal, is a versatile material produced by slitting and stretching a metal sheet to create a pattern of uniform diamond-shaped openings. These openings are characterized by dimensions that significantly influence the functionality and adaptability of the material.
 
Standard Sizes

Expanded metal is available in a range of standard sizes, typically specified in terms of sheet dimensions such as width and length. Common widths range from 24 inches to 48 inches, while lengths can vary based on the manufacturer and customer requirements. Understanding these standard sizes enables seamless integration into various projects and applications.
 
Thicknesses

The thickness of expanded metal, often referred to as gauge or thickness gauge, plays a crucial role in determining its durability and load-bearing capacity. Thicknesses commonly range from lightweight gauges suitable for decorative applications to heavy-duty gauges ideal for structural support and industrial use.
 
Strand Widths

Strand width, also known as strand size or width of the metal after expansion, is another key dimension to consider. It refers to the width of the metal strands remaining after the expansion process. Strand widths vary depending on the desired strength, rigidity, and appearance of the expanded metal.
 
Diamond Openings

The diamond-shaped openings in expanded metal are characterized by dimensions such as short way of diamond (SWD) and long way of diamond (LWD). These dimensions dictate factors such as airflow, visibility, and material containment, making them essential considerations for specific applications.
 
Impact on Versatility and Applications

The dimensions of expanded metal directly influence its versatility and suitability for a wide range of applications. From architectural accents and decorative panels to safety grating and filtration systems, expanded metal dimensions dictate performance characteristics such as strength, flexibility, and aesthetic appeal.
 

Expanded Metal Size Chart

TABLE 1: Carbon Steel Dimensions, Strand Sizes, and Weight for Type I (Raised), Class 1 MetalA
 
Style MinimumB
Thickness		 Nominal
Weight
per CSF C		 Design SizeD Opening SizeD Strand Size Overall
Thickness		 Diamond
per ft.		 Percent
Open Area
SWD LWD SWO LWO Width Thickness SWD LWD
1⁄4 20 0.032 85 0.250 1.000 0.125 0.718 0.072 0.036 0.135 48 12 42%
1⁄4 18 0.042 113 0.250 1.000 0.110 0.718 0.072 0.048 0.147 48 12 42%
1⁄2 20 0.032 42 0.500 1.200 0.438 0.938 0.072 0.036 0.140 24 10 71%
1⁄2 18 0.042 69 0.500 1.200 0.438 0.938 0.088 0.048 0.172 24 10 65%
1⁄2 16 0.053 85 0.500 1.200 0.375 0.938 0.087 0.060 0.175 24 10 65%
1⁄2 13 0.083 144 0.500 1.200 0.312 0.938 0.096 0.092 0.204 24 10 62%
3⁄4 16 0.053 54 0.923 2.000 0.813 1.750 0.101 0.060 0.210 13 6 78%
3⁄4 13 0.083 78 0.923 2.000 0.750 1.688 0.096 0.092 0.205 13 6 79%
3⁄4 10 0.083 117 0.923 2.000 0.750 1.625 0.144 0.092 0.290 13 6 69%
3⁄4 9 0.127 178 0.923 2.000 0.688 1.562 0.150 0.134 0.312 13 6 67%
1 16 0.053 43 1.000 2.400 0.938 2.062 0.078 0.060 0.192 12 5 83%
1-1⁄2 18 0.042 20 1.330 3.000 1.313 2.625 0.068 0.048 0.140 9 4 90%
1-1⁄2 16 0.053 40 1.330 3.000 1.250 2.625 0.108 0.060 0.230 9 4 84%
1-1⁄2 13 0.083 59 1.330 3.000 1.188 2.500 0.105 0.092 0.242 9 4 84%
1-1⁄2 10 0.083 78 1.330 3.000 1.188 2.500 0.138 0.092 0.284 9 4 79%
1-1⁄2 9 0.127 119 1.330 3.000 1.125 2.375 0.144 0.134 0.312 9 4 78%
1-1⁄2 6 0.184 247 1.330 3.000 1.110 2.313 0.203 0.198 0.433 9 4 69%
2 10 0.083 67 1.850 4.000 1.625 3.438 0.164 0.092 0.327 6.5 3 82%
2 9 0.127 88 1.850 4.000 1.563 3.375 0.149 0.134 0.312 6.5 3 84%

Note:

  • A1 in. = 25.4 mm; 1 lb = 0.454 kg.
  • BThe minimum thickness is absolute, not subject to minus variation.
  • CA variation in weight per square ft. of ±10 % is permissible, based on the weight of any sheet or bundle.
  • DA tolerance of ±10 % is permitted in dimensions, center to center.
 
TABLE 2 Grating—Carbon Steel Dimensions, Strand Sizes, and Weight for Type I (Raised), Class I Metal
 
Style Nominal
Weight
per CSFB		 Design SizeC Opening SizeC Strand Size Overall
Thickness		 Diamond
per ft.		 Percent
Open Area
SWD LWD SWO LWO Width Thickness SWD LWD
2.0 lb 2.00 1.33 5.33 1.000 3.60 0.235 0.135 0.460 9.0 2.25 77%
3.0 lb 3.00 1.33 5.33 0.940 3.44 0.264 0.183 0.540 9.0 2.25 60%
3.14 lb 3.14 2.00 6.00 1.625 4.88 0.412 0.250 0.656 6.0 2.00 69%
4.0 lb 4.00 1.33 5.33 0.940 3.44 0.300 0.215 0.618 9.0 2.25 55%
4.27 lb 4.27 1.41 4.00 1.000 2.88 0.300 0.250 0.625 8.5 3.00 58%
5.0lb 5.00 1.33 5.33 0.813 3.38 0.331 0.250 0.655 9.0 2.25 50
6.25 lb 6.25 1.41 5.33 0.813 3.38 0.350 0.312 0.715 8.5 2.25 50%
7.0 lb 7.00 1.41 5.33 0.813 3.38 0.391 0.318 0.740 8.5 2.25 45%

Note:

  • A 1 in. = 25.4 mm; 1 lb = 0.454 kg.
  • B A variation in weight per square ft. of ±5 % is permissible, based on the weight of any sheet or bundle.
  • C A tolerance of ±5 % is permitted in dimensions, center to center.
 
TABLE 3 Grating—Stainless Steel Dimensions, Strand Sizes, and Weights for Type 1 (Raised), Class 1 MetalA
 
Style Nominal
Weight
per CSFB		 Design Size,
in.C		 Opening Size,
in.C		 Strand Size,
in.		 Overall
Thickness		 Diamond
per ft.		 Percent
Open Area
SWD LWD SWO LWO Width Thickness SWD LWD
3.3lb. 3.32 2.00 6.0 1.625 4.880 0.312 0.250 0.656 6 2 69%
4.5lb. 4.25 1.41 4.0 1.000 2.880 0.300 0.250 0.625 8.5 3 58%

Note:

  • A 1 in. = 25.4 mm; 1 lb = 0.454 kg.
  • B A variation in weight per square ft. of ±5 % is permissible, based on the weight of any sheet or bundle.
  • C A tolerance of ±5 % is permitted in dimensions, center to center
 
TABLE 4 Carbon Steel Dimensions, Strand Sizes, and Weight for Type II (Flattened), Class 1 MetalA
 
Style MinimumB
Thickness		 Nominal
Weight
per
CSFC		 Design SizeD Opening SizeD Strand Size Overall
Thickness		 Diamond
per ft.		 Percent
Open Area
SWD LWD SWO LWO With Thickness SWD LWD
1⁄4 20 0.026 74 0.250 1.050 0.084 0.715 0.079 0.029 0.029 48 11.6 37%
1⁄4 18 0.034 100 0.250 1.050 0.075 0.715 0.080 0.038 0.038 48 11.6 36%
1⁄2 20 0.026 37 500 1.250 0.375 1.000 0.079 0.029 0.029 24 9.5 68%
1⁄2 18 0.034 61 0.500 1.250 0.312 1.000 0.097 0.038 0.038 24 9.5 61%
1⁄2 16 0.043 75 0.500 1.250 0.312 1.000 0.096 0.048 0.048 24 9.5 61%
1⁄2 13 0.066 126 0.500 1.250 0.265 1.000 0.107 0.072 0.072 24 9.5 57%
3⁄4 16 0.043 47 0.923 2.100 0.750 1.750 0.111 0.048 0.048 13 5.7 76%
3⁄4 14 0.054 56 0.923 2.100 0.688 1.813 0.105 0.060 0.060 13 5.7 77%
3⁄4 13 0.066 67 0.923 2.100 0.688 1.781 0.106 0.072 0.072 13 5.7 77%
3⁄4 10 0.066 102 0.923 2.100 0.637 1.755 0.160 0.072 0.072 13 5.7 65%
3⁄4 9 0.101 157 0.928 2.100 0.563 1.688 0.165 0.108 0.108 13 5.7 64%
1 16 0.043 38 1.000 2.500 0.813 2.250 0.098 0.048 0.048 12 4.68 80%
1-1⁄2 16 0.043 35 1.330 3.200 1.062 2.750 0.119 0.048 0.048 9 3.75 82%
1-1⁄2 14 0.054 43 1.330 3.200 1.062 2.750 0.116 0.060 0.060 9 3.75 83%
1-1⁄2 13 0.066 51 1.330 3.200 1.062 2.750 0.116 0.072 0.072 9 3.75 83%
1-1⁄2 9 0.101 105 1.330 3.200 1.000 2.653 0.158 0.108 0.108 9 3.75 76%

Note:

  • A1 in. = 25.4 mm; 1 lb = 0.454 kg.
  • B The minimum thickness is absolute, not subject to minus variation.
  • CA variation in weight per square ft. of ±10 % is permissible, based on the weight of any sheet or bundle.
  • DA tolerance of ±10 % is permitted in dimensions, center to center.
 
TABLE 5 Stainless Steel Styles, Weights, Dimensions, and Sheet Sizes for Type I (Raised), Class 3 MetalA
 
Style Minimum
ThicknessD		 Nominal
Weight
per CSFB		 Design SizeC Opening SizeC Strand SizeC Overall
Thickness		 Diamond per ft. Percent
Open Area
SWD LWD SWO LWO Width Thickness SWD LWD
1⁄2 18 0.044 69 0.500 1.200 0.437 0.937 0.087 0.048 0.164 24 10 65%
1⁄2 16 0.055 87 0.500 1.200 0.437 0.937 0.087 0.060 0.164 24 10 65%
1⁄2 13 0.085 148 0.500 1.200 0.325 0.875 0.119 0.090 0.225 24 10 60%
3⁄4 18 0.044 46 0.923 2.000 0.812 1.750 0.106 0.048 0.202 13 6 77%
3⁄4 16 0.055 57 0.923 2.000 0.812 1.750 0.106 0.060 0.202 13 6 77%
3⁄4 13 0.085 87 0.923 2.000 0.750 1.687 0.107 0.090 0.202 13 6 77%
3⁄4 9 0.128 194 0.923 2.000 0.687 1.582 0.160 0.135 0.300 13 6 65%
1-1⁄2 16 0.055 43 1.330 3.000 1.250 2.750 0.115 0.060 0.222 9 4 83%
1-1⁄213 0.085 65 1.330 3.000 1.250 2.750 0.115 0.090 0.222 9 4 83%
1-1⁄2 9 0.128 130 1.330 3.000 1.125 2.500 0.155 0.135 0.280 9 4 77%

Note:

  • A1 lb = 0.454 kg; 1 in. = 25.4 mm.
  • BA variation in weight per square ft. of ±10 % is permissible, based on the weight of any sheet or bundle.
  • C A tolerance of ±10 % is permitted in dimensions.
  • DThe minimum thickness is absolute, not subject to minus variation.
 
TABLE 6 Stainless Steel Styles, Weights, Dimensions, and Sheet Sizes for Type II (Flattened), Class 3 MetalA
 
Style Minimum
ThicknessD		 Nominal
Weight
per CSFB		 Design SizeC Opening SizeC Strand Size Overall
Thickness		 Diamond
per ft.		 Percent
Open Area
SWD LWD SWO LWO Width Thickness SWD LWD
1⁄2 18 0.037 66 0.500 1.260 0.312 1.000 0.098 0.041 0.041 24 9.5 61%
1⁄2 16 0.047 84 0.500 1.260 0.312 1.000 0.099 0.051 0.051 24 9.5 60%
1⁄2 13 0.072 168 0.500 1.260 0.240 0.915 0.132 0.076 0.076 24 9.5 4
3⁄4 18 0.037 43 0.923 2.100 0.750 1.812 0.118 0.041 0.041 13 5.7 74%
3⁄4 16 0.047 54 0.923 2.100 0.750 1.812 0.118 0.051 0.051 13 5.7 74%
3⁄4 13 0.072 83 0.923 2.100 0.625 1.750 0.120 0.076 0.076 13 5.7 74%
3⁄4 9 0.108 170 0.923 2.100 0.562 1.687 0.165 0.114 0.114 13 5.7 64%
1-1⁄2 16 0.047 41 1.330 3.150 1.062 2.750 0.128 0.051 0.051 9 3.8 81%
1-1⁄2 13 0.072 62 1.330 3.150 1.000 2.625 0.130 0.076 0.076 9 3.8 80%
1-1⁄2 9 0.108 132 1.330 3.150 0.037 2.625 0.165 0.114 0.114 9 3.8 72%

Note:

  • A 1 lb = 0.454 kg; 1 in. = 25.4 mm.
  • B A variation in weight per square ft. of ±10 % is permissible, based on the weight of any sheet or bundle.
  • C A tolerance of ±10 % is permitted in dimensions.
  • D The minimum thickness is absolute, not subject to minus variation.
HUIJINMESH MANUFACTURER SINCE 1986